--- Begin Message ---
Subject: |
[PATCH] gnu: Add libpfm4. |
Date: |
Fri, 20 Apr 2018 17:30:57 +0200 |
* gnu/packageslinux.scm (libpfm4): New variable.
---
gnu/packages/linux.scm | 41 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index c09e0474a..725f90780 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -4596,3 +4596,44 @@ emulates the behaviour of Gunnar Monell's older fbgrab
utility.")
restriction, permission handling and more. This package provides userspace
interface to this kernel feature.")
(license license:lgpl2.1)))
+
+(define-public libpfm4
+ (package
+ (name "libpfm4")
+ (version "4.9.0")
+ (source (origin
+ (method url-fetch)
+ (uri (string-append "mirror://sourceforge/perfmon2/"
+ name "/libpfm-" version ".tar.gz"))
+ (sha256
+ (base32
+ "1qp4g4n6dw42p2w5rkwzdb7ynk8h7g5vg01ybpmvxncgwa7bw3yv"))))
+ (build-system gnu-build-system)
+ (arguments
+ '(#:modules ((guix build utils)
+ (guix build gnu-build-system))
+ #:phases (modify-phases %standard-phases
+ (delete 'configure)
+ (delete 'check)
+ (replace 'build
+ (lambda* (#:key inputs outputs #:allow-other-keys)
+ (let* ((out (assoc-ref outputs "out")))
+ (setenv "CC" "gcc")
+ (invoke "make")
+ #t)))
+ (replace 'install
+ (lambda* (#:key outputs #:allow-other-keys)
+ (let* ((out (assoc-ref outputs "out")))
+ (invoke "make"
+ (string-append "PREFIX=" out)
+ "install")
+ #t))))))
+ (synopsis "Performance events monitoring library for Linux perf_events")
+ (description
+ "This package is a user library called libpfm4 to help setup performance
+events for use with the perf_events Linux kernel interface.
+
+This is a complete rewrite of libpfm3 and it is NOT backward compatible
+with it.")
+ (home-page "http://perfmon2.sourceforge.net/")
+ (license license:expat)))
--
2.17.0
--- End Message ---
--- Begin Message ---
Subject: |
Re: [bug#31226] [PATCH] gnu: Add libpfm4. |
Date: |
Thu, 26 Apr 2018 15:29:26 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux) |
Rouby Pierre-Antoine <address@hidden> skribis:
> * gnu/packageslinux.scm (libpfm4): New variable.
Applied with the following changes based on their README.
Thank you!
Ludo’.
diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index b6d00c853..4d2446317 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -4712,12 +4712,18 @@ high-speed networking devices.")
(string-append "PREFIX=" out)
"install")
#t))))))
- (synopsis "Performance events monitoring library for Linux perf_events")
+ (synopsis "Performance event monitoring library")
(description
- "This package is a user library called libpfm4 to help setup performance
-events for use with the perf_events Linux kernel interface.
+ "This package provides a library called libpfm4, which is used to develop
+monitoring tools exploiting the performance monitoring events such as those
+provided by the Performance Monitoring Unit (PMU) of modern processors.
-This is a complete rewrite of libpfm3 and it is NOT backward compatible
-with it.")
+Libpfm4 helps convert from an event name, expressed as a string, to the event
+encoding that is either the raw event as documented by the hardware vendor or
+the OS-specific encoding. In the latter case, the library is able to prepare
+the OS-specific data structures needed by the kernel to setup the event.
+
+libpfm4 provides support for the @code{perf_events} interface, which was
+introduced in Linux 2.6.31.")
(home-page "http://perfmon2.sourceforge.net/")
(license license:expat)))
--- End Message ---